Feather-edging machine.



W. C. STEWART.

FEATHER EDGING MACHINE.

APPLlCATlON FILED JUNE 9.1915;

Patented. Nov. 2?, 1917.

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WILLIA'M C. STEV/ART, OF S'WAMPSGOTT, MASSACHUSETTS, ASSIGNOR T0 UNITEDSHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATIGN OF NEWJERSEY.

FEATHER-EDGIHG MIACHINE.

Specification of Letters Patent.

Patented New. 2*7, 191%.

Application filed June 9. 1915. Serial No. 33,039.

To all whom it may concern:

Be it known that I, \VILLIAM C. S'rnw- ART, a subject of the King ofGreat Britain. residing at Swampscott, in the county of Essex and Stateof Massachusetts, have invented certain new and useful Improvements inFeather-Edging Machines; and I do hereby declare the following to be afull, clear, and exact description of the invention, such will enableothers skilled in the art to which it appertains to make and use thesame.

This invention relates to feather edging machines for use in beyelingthe face of shoe soles. More particularly the invention relates to shankreducing machines for skiving the flesh side of ashoe sole at the shank.

In the manufacture of outsoles for shoes it is desirable to bevel orskive off the shank portion of the sole to provide room for the forwardends of the counter and the beveled ends of the welt at the breast lineof a welted shoe. An outsole when properly skived out at the shank canbe more readily molded during the leveling operation, and when appliedto the shoe, the shank has a light edge appearance which greatly adds tothe finish of a shoe. To gain the full effects of the advantages ofreduced shank outsoles it is necessary that the ski ing shall becorrectly shaped and located in t1 e true shank of the outs-ole asbounded approximately by the ball line and breast line of a sole. In theusual method of reducing the shanks of outsoles, the sole is fed by theoperative along an edge gage in front of a rotary cutter and theoperatives depend entirely upon their skill and experience to properlylocate and shape the shank skiving. When considering the large number ofclifferent styles of soles and the variations of the length of the shankfor all the different sizes and widths of soles, it is obvious that theoperative can only approximately locate and shape the skiving by eye inthe ordinary practise. This type of work is not uniform and produces anon-uniformity in the shoes to which the sole is applied and necessarilyreduces the grade of the shoes. Further difficulty is experienced alsoin shaping the skiving by eye when over size block and died-out solesare used. In using a ten size block sole to make a six size outside, theskiving on the block sole for a six size will be shorter and run incloser to the center line of the sole than the skiying of the ten sizesole and, with a wide sham: cut, the skiving is liable to extend pastthe ball and breast line of the sole.

The primary object of the invention to provide a feather edging machinefor operating on marked soles which will overcome the objectionablefeatures attendant on the ordinary practice of shank skiving.

In accordance with this object, one feature of the inventioncontemplates the pro vision in a feather edging machine having a guidefor the sole, of a pointer adjacent the guide to act as a referenceindex to de termine the feeding movement of the sole. By employing amarked sole with this type of machine, the pointer may be employed as astarting and stopping point to which the mark on the sole is presentedwhen the sole is fed across: the skiving knife. lVith a marked sole tolocate the skiring and a pointer on the machine to control the characterof skiving, a uniform class of work can be produced. in the preferredform of the invention, however, the marks on the sole are notches andthe pointer is in the form of a stop which is positioned to ride on thesole edge as it is fed across the cutter. lVhen the notches contact thestop, the feeding movement of the sole will be automatically stopped ina position where the correct character of the cut will he made in thesole.

Another object of the invention is to provide a feather edging machinewith a simple adjustment by which the sole positioning parts may be setto give a predetcr mined form of cut and which provides for thecontrolling characteristics of sole to be made. In accordance with thisobject, an other feature of this invention contemplates the provision ina feather edging machine having an edge gage for guiding the sole whileit is being skired, of an adju member for the gage provided with a gated dial from which the ed 'e page may he set for making skivings of apredetermined character for any type of sole. The feather edging machinehereinafter described is provided with stops for engaging the notches onthe sole edge to control the length of cut, and in the preferred form ofthe invention these stops are operatircly connected with the edge gagein such a manner that when the edge gage is adjusted for differentwidths of cut, the stops are simultaneously adjusted to correspondinglycontrol the length of cut.

Other features of the invention consist in certain arrangements andconstruction of parts hereinafter described and claimed, the

advantages of which will be obvious to those skilled in the art to whichthe invention relates.

In the accompanying drawings, Figure 1 is a front elevation of the headof a feather edging machine with the preferred form of the inventionapplied thereto; Fig. 2 is a side elevation of the parts illustrated inFig. 1; Fig. 3 is a vertical section on the line 33 of Fig. 1,illustrating the relation of the sole positioning parts to the cutter;Fig. 1 is a vertical section on the line etl of Fig. 2, illustrating theconstruction of the edge gage carrier and the stop carriers, and theconnection between them; and Fig. 5 is a view of a block soleillustrating the form of skiving made by the machine.

The feather edging machine illustrated in the accompanying drawings hassubstantially the same construction of parts and mode of ope 'ation asthe machine described and claimed in the patent to Preble, No. 693902,patented February 25, 19 02. This machine has the usual form of cutterhead 10, mounted in a machine head 12 on a continuously rotatable shaft14. An edge gage l6 and face gage 18 are supported in front of thecutter head 10 for positioning the sole as it is fed across the cutter.

lVhen employing the machine for reducing the shanks of out soles, thesole blank is placed between the cutter 10 and the face gage 18 with itsedge against the edge gage 16. A pair of stops 22 ride along the edge ofthe sole to engage notches 24 in the sole edge and limit the feedingmovement in order to control the character of skiving on the sole. Theedge and face gages are attached to shanks 26 and 28 respectively, whichare mounted in an edge gage carrier 30. The ends of the shanks 26 and 28are threaded for the reception of thumb screws 32 and 3a which are heldin place against the carrier by means of a retaining plate 36 which fitsin annular grooves 38 formed near the base of the thumb screws. The edgeand face gages may be adjusted toward and from the face of the cutter10, to provide for different thicknesses of soles, by means of the thumbscrews 32 and 34, and the adjustment of the gages can be maintained bymeans of set screws 40 in the edge gage carrier which engages the shanks26 and 28. The edge gage carrier is adjustable across the face of thecutter to set the gages for making different widths of skiving. Toprovide for this adjustment, the edge gage carrier is movably mounted ina carrier bracket 42, which is attached to the machine head 12 by meansof a bolt 44. The edge gage carrier has av cam plate %6 which isprovided with a tongue 48, Fig. 3, that projects into and has a slidingengagement with a slot 50 in the bracket 4-2. The cam plate 16 issecured to the body of the edge gage carrier by means of screws 52. Theedge gage carrier is adjusted along the slot 50 by means of a handadjusting screw. This adjusting screw consists of a wheel 54, aright-hand screw 56 mounted in a nut 58, held in a lug 60 which isintegral with the carrier bracket 42, and a left-hand screw 62 mountedin a nut 64: held in the edge gage carrier. The nut 58 is held inposition in the lug 60 by means of a tie plate 66, and the nut 6% isheld in place in the edge gage carrier by means of a set screw 68 sothey can both be removed. By this means, the adjusting screw may betaken out and a new adjusting screw and nuts with a different pitch canbe put inits place. The adjustment of the screw is maintained by meansof a detent 70 which is mounted in a slot immediately behind the handwheel 54. The detent is forced against a series of teeth formed on theperiphery of the wheel 5% by means of a spring 72, which is sufficientlystrong to hold the screw from turning under the jar of the machine whilepermitting a manual adjustment of the screw.

On the upper end of the adjusting screw is mounted a dial 74 which isprovided with a series of graduations 76 adapted to register with apointer 78 mounted on the carrier bracket at the side of the dial. Thegraduations on the dial indicate specific settings of the edge gage fora predetermined width of cut. The numerals of the graduations are indexnumbers which are obtained from a width measuring machine illustratedand described in my co-pending application Serial No. 33,038 filed June9, 1915. In this width measuring machine, the block or died-out sole isgaged at approximately the center line of the shank in order todetermine the character-er of skiving which must be made on the sole fora predetermined type of finished sole. In male ing the widthmeasurement, the machine has adjustments for the style of sole, that is.mens, ladies, childrens, etc., the sizes and widths of soles, the stylewidths of soles as to whether the sole is small, large or regular, andfurther, the measuring machine indicates the largest size and the indexfor that size of sole that can be made from the blank being measured.The pitch of the adjusting screw 54-. of the skiving machine iscarefully formed, so that with a specific setting of the dial for one ofthese index numbers, the edge gage will be set in a position to make askiving that will provide for all :of the adjustments mentioned above,

which are the controlling characteristics of a sole to be made. 1 Withthis form of construetion when a specific lot of soles is to be skived,the shank of one of the soles can be measured in the machine of myapplica tion No. 33,038 and the index number indicated in this machinemaybe set on the dial 74: by a quick and simple operation, so that aseries of adjustments and readjustments in setting the edge gagetoprovide for all of the characteristics of thesole to be made, is notnecessary.

\Vhile the index number is obtained by a measurement of the sole whileproviding for four characteristics of the sole, namely, the style, size,width and style width, the invention is not limited to an index numberproviding for these four characteristics 1 but may be obtained by ameasurement of a sole with provision for only those characteristicswhich control or modify the shape and location of the portion of thesole to be operated upon.

The skiving machine illustrated in the drawings is particularly adaptedfor oper ating on soles marked by the machine illustrated and describedin my co-pending application, Serial No. 33,0-ft0, filed June 9, 1915.In this machine a series of notches are placed in the sole edge on bothsides of the sole to indicate the boundaries of the true ball and breastline, and thus locate the position of the shank of a predeterminedcharacter of sole. Then the marked sole is used in my improved skivingmachine, a series of pointers, or stops, are placed at the side of theedge gage to indicate a reference point to .which the notches in themarked sole may be presented in order to form a skiving ofapredetermined length.

'These pointers may ride on the edge of the sole, or be adjacent theside of the sole, so that the mark is brought up to the pointer inmaking a predetermined length of cut, but in the preferred form of theinvention, the stops ride on the edge of the sole and are yieldinglypressed so that they will drop into the notches on the sole edge tolimit the sole feeding movement. The stops 22 are held in carriers 80pivotally mounted between a pair of arms 82, Fig. 2, formed on the upperend of the carrier bracket 42. The carriers are locked by means ofsetscrews 84; upon pivot pins 86 mounted in the arms 82. The arms 82 areseparated sufficiently to permit the hub 88 of the 'carriers 80 to beadjusted between them in positioning the stops with reference to thecutter 10. The stops 22 are attached to slides 90 which are mounted inslots 92, see Fig. 4, formed in the carriers 80. The slides 90 are heldin the slots by means of cover plates 94: attached to the carriers.These stops are. normally pressed toward thebotub W tom of the cutter bymeans of coiled springs 96 which are connected between pins 98 mountedin the carriers 80, and pins 100 mounted in the end of the slides 90,and the pins 100 serve to limit the downward move ment of the slides.With this construction, when the sole is placed between the cutter andguides, the stops 22 are positioned to ride on the edge of the sole, andthe springs 96f0rce the stops to follow the contour of the sole edge. Vhen a stop registers with a notch in the sole, it is immediately forcedinto the notch by the spring 96 to stop the feeding movement.

In order that the stops may be correctly positioned for engaging thenotches in the sole to properly locate the shank skiving, the stopcarriers 80 are connected with the cam plate t6 of the edge gagecarrier. The correlative movement connection between these members issuch that when the edge gage is adjusted for a specific index number onthe dial 74, the stops will be correspond ingly adjusted so that theshank skiving will coincide in length with the length of the shankmarked on the sole, regardless of the width setting of the edge gage.-Pivot pins 102 project from blocks 10 i which are adjustably mounted bymeans of slots 106 and screws 108 on the sides of the stop carriers 80.The pins 102 project into cam slots 110 formed on eachsicle of the camplate 46 so that, when the edge gage carrier is adjusted up and down,the stop carriers are adjusted toward and away from one another. The camslots 110 are so constructed that a. proportional adjustment of thestops is made when the edge gage is set for a definite width of cut. Theadjustment of the stops by the edge gage carrier positions them tocontrol the feeding movement of the sole to confine the shank skivingbetween the ball and breast lines of the sole. The proportional relationof the stops and edge gage may be varied by adjusting the blocks 104.along the screws 108, so that the specific relation between the lengthof cut and width of out can be accurately gaged.

The operation of the machine is as follows: A marked sole, such as isshown in Fig. 1, is placed with a notchat one end of the shank incontact with a stop, and the sole is then forced up between the cutter10 and the face gage 18, and then drawn across the face of the knifeuntil the stop on the opposite side of the gage engages the notch on theother side of the shank when the skiving will be finished. The characterof skiving obtained by this operation is illustrated in Fig. 5, whichshows a sole that has been skived out.

It will be noted that the ends of the skivings tend to follow thedirection of the ball and breast lines. This peculiar type of cut isobtained when feeding the sole against thestops, because the solebetween the face guide 18 and the cutter 10 tends to present a convexsurface while being skived, and thus a cut is formed tending toward arectangular shape rather than a crescent shaped out, which would beexpected if the sole did not bend over the face guide.

The nature and scope of the present invention having been indicated, andthe preferred embodiment of the invention having been specificallydescribed, what is claimed as new, is

1.. A feather edging machine for marked soles having, in combination, arotary cut- 'ter, means for guiding a sole, and a stop for engaging thesole to control the length of the cut longitudinally of the sole.

2. A feather edging machine for marked soles having, in combination, acutter, means for guiding a sole as it is fed past the cutter, and aplurality of pointers to indicate the limits of travel of the sole ateach side of the cutting point to make a predetermined type of cut.

3. A feather edging machine for marked soles having, in combination, acutter, means for guiding a sole as it is fed across the cutter, and ayielding stop for engaging a notch in the sole to determine the feedingmovement on making a predetermined type of cut.

4:. A feather edging machine for operating on marked soles having, incombination, a cutter, a gage carrier for the sole guiding means, and apair of stop fingers pivotally connected with said carrier adapted toride on the edge of a sole as it is fed past the cutter and engagenotches in the edge to limit the feeding movement.

5. A feather edging machine for operating on marked soles having, incombination, a cutter, a guide for the sole including a sole support tohold the sole up against the cutter and an edge gage, a stop on eachside of the guide to engage notches in the edge of the sole in making apredetermined type of cut, and means for adjusting the guide and stopsto vary the type of cut.

6. A feather edging machine for operating on marked soles having, incombination, a cutter, a gage carrier, stop carriers, guides in thecarriers for positioning the sole while it is being cut, stops in thecarriers for engaging the edge of the sole, and a proportioningconnection between the stop and gage carriers whereby the adjustment ofone will correspondingly adjust the other. 7. A feather edging machinefor operat-. ing on marked soles having, in combination, a cutter,guides for positioning the sole while it is being cut, stops forengaging notches in the sole to limit the length of cut, a connectionbetween the guides and stops by which they may be adjusted in a definiterelation, and means for varying the relational'setting between the stopsand guides.

8. A feather edging machine for operating on marked soles having, incombination, a frame, a rotary cutter fixed in the frame, a gage carrierslidably mounted in the frame, sole guides adjustably mounted in thegage carrier, stop carriers pivotally mounted on the frame having arelative adjusting connection with the gage carrier, stops slidablymounted in the stop carriers, and means for adjusting the gage carrier.

9. A feather edging machine for operating on marked soles having, incombination, a cutter, gages for guiding the sole, stops for determiningthe length of the cut on the sole having a correlative adjustableconnection with the gages, and an adjusting member for said gages havinga dial to indicate the setting of the gages and stops for apredetermined character of cut.

10. A feather edging machine for operating on marked soles having, incombination, a cutter, guides for a sole, stops for engaging notches inthe sole to determine the length of cut, and springs for yieldinglyholding the stops against the edge of the sole, whereby the stops followthe contour of the sole during the feeding movement of the sole.

11. A featheredging machine for operating on marked soles having, incombination, a cutter, a gage carrier, a sole guide on the carrier, astop operatively connected with the carrier, and means for adjusting thecarrier to set the guide and stop for dif ferent types of cuts.

12. A feather edging machine for operating on marked soles having, incombination, a cutter, a gage carrier, sole guides on the carrier, stopsadjustably connected with the carrier, means to adjust the guides fordifferent widths of cut, and means for adjusting the stops for differentlengths of cut.

13. A feather edging machine for operating on marked soles having, incombination, a cutter, a gage carrier, a sole guide on the carrier,stops correlatively adjustably connected with the carrier, and means tosimultaneously adjust the stops and guide for a predetermined type ofcut.

14:. A feather edging machine having, in combination, a rotary cutter,guides for the sole, stops for engaging notches in the edge of the sole,means to adjust the guides to locate the cut in a definite relation tothe center line of the sole, and mechanism controlled by said means forautomatically correspondingly adjusting said stops to control apredetermined length of cut, regardless of the width of cut.

15. A feather edging machine having, in

combination, a cutter, an edge gage for con trolling the width of cut,stops for determining the length of cut, and an indicator adjustingmeans for setting the gage and stops for a predetermined type of outwhich provides for the controlling characteristics of the sole.

16. A feather edge machine for operating on marked soles having, incombination, a cutter, means for positioning the sole as it is fedacross the cutter to determine the width of cut transversely of thesole, and a. pointer for indicating the amplitude of the longitudinalfeeding movement for a predetermined length of out.

17. A feather edging machine having, in combination, a cutter, an edgegage for guiding a sole blank and controlling the Width of cut, a stopfor controlling the length of cut, and a dial indicating means forsetting the gage and stop, having calibrations providing for the size,Width and style of sole to be formed from the blank.

WILLIAM C. STEWART.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

' Washington, D. G.

It is hereby certified that in Letters Patent No. 1,247,893, grantedNovember 2-7,

1917, upon the application of William C. Stewart, of Swampscott, AIassachusetts,

for an improvement in Feather-Edging Machines, errors appear in theprinted specification requiring correction as follows: Page 1, lines53-54, for the word outside" read out/sole; page 2, line 61, for theword engages read engage: page 5,

line 6, claim 16, for the Word edge road edging i and that the saidLetters Patent should be read with these corrections therein that thesame may conform to the record of the case in the Patent Office. v

Signed and sealed this 5th day of February, A. 1)., 1918.

[SEAL] R. F. WHITEHEAD,

Acting Covnmv'ssimmr of Patent-v. Cl. l217.

